Preheat oven to 350 degrees. Peel apples and slice thinly. Toss with lemon juice. Place margarine in a 9-inch round baking dish. Place in oven until melted; then remove. Sprinkle brown sugar over margarine. Place apple slices in circular shape around pan, slightly overlapping, until whole pan is covered.

Beat together egg and sugar until well mixed. Stir together pareve whip and vanilla. Stir together flour and baking powder. Add to egg mixture alternately with whip, beginning and ending with the dry ingredients. Pour over apples. Bake for about 40 to 55 minutes. Cool for 10 minutes, then turn over onto rack to finish cooling.

So sorry for the mess, the recipe calls for a 9-inch cake pan or 9-inch round. I just retested it and it came out and was cooked through in the stated amount of time. The recipe is correct. Please check your oven temperature.

I am having the same problem. It’s been in for 40ish minutes and it still seems much too raw to take out. I upped the heat to 335 in the meantime.
Also: make sure that your pan is much higher/taller than mine (a regular round 9″ pan, I think, sorry I don’t know the exact dimensions) because I had to remove half of my apple layer (4 Granny Smiths like the recipe says) to fit the batter in.

I made it one more time. I put the oven temperature at 350 for better and faster cake baking, mine was done in 42 minutes, but I wrote to start checking it at 40 minutes and could take up to 55 minutes.

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